Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2017

Accounting Policies [Abstract]

Summary of Stock Based Compensation Included in Cost of Sales or Operating Expenses

Stock-based compensation is included in cost of sales or operating expenses, as applicable, and consists of the following:

	Three Months Ended
	March 31,
	2017		2016
	(In thousands)
Cost of product revenue	$	204	$	192
Research and development expenses		138		140
Sales and marketing expenses		268		261
General and administrative expenses		634		777
Total stock-based compensation	$	1,244	$	1,370

Schedule of Total Revenues, Based on Shipment Destination or Research Services Location

Information about the Company’s total revenues, based on shipment destination or services location, is presented in the following table:

	Three Months Ended
	March 31,
	2017		2016
	(In thousands)
Revenue:
U.S.	$	9,130	$	11,413
International		13,872		21,408
Total	$	23,002	$	32,821